`leftcoastlearning.com`

DNSSEC	⚠️ Not signed
NS	`ns1x.cengage.net` ⭐ ⚠️ Not in parent delegation
		A	69.32.130.251^{🇺🇸 RoadRunner69.32.130.0/23 Proxy-registered route object for Cengage Learning Inc Attn Communications in CSO Mason, OH 45040}
			PTR	`ns1x.cengage.net`
NS	`a1-49.akam.net` ⚠️ Not in zone NS records
		A	2600:1401:2::31^{🇺🇸 Akamai2600:1401:2::/48 Technologies}
			PTR	`a1-49.akam.net`
			PTR	`ns1-49.akam.net`
		A	193.108.91.49^{🇳🇱 Akamai193.108.91.0/24 Technologies}
			PTR	`a1-49.akam.net`
			PTR	`ns1-49.akam.net`
NS	`a13-64.akam.net` ⚠️ Not in zone NS records
		A	2600:1480:800::40^{🇺🇸 Akamai2600:1480:800::/48 Technologies}
			PTR	`a13-64.akam.net`
			PTR	`ns2-64.akam.net`
		A	2.22.230.64^{🇳🇱 Akamai2.22.230.0/24 Technologies}
			PTR	`a13-64.akam.net`
			PTR	`eur6.akam.net`
			PTR	`ns2-64.akam.net`
NS	`a14-65.akam.net` ⚠️ Not in zone NS records
		A	2600:1480:1800::41^{🇺🇸 Akamai2600:1480:1800::/48 Technologies}
			PTR	`a14-65.akam.net`
		A	184.26.161.65^{🇺🇸 Akamai184.26.161.0/24 Technologies}
			PTR	`a14-65.akam.net`
NS	`dns1.p01.nsone.net` ⚠️ Not in zone NS records
		A	2620:4d:4000:6259:7:1:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p01.nsone.net`
		A	198.51.44.1^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p01.nsone.net`
NS	`dns2.p01.nsone.net` ⚠️ Not in zone NS records
		A	2a00:edc0:6259:7:1::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p01.nsone.net`
		A	198.51.45.1^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p01.nsone.net`
NS	`dns3.p01.nsone.net` ⚠️ Not in zone NS records
		A	2620:4d:4000:6259:7:1:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p01.nsone.net`
		A	198.51.44.65^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p01.nsone.net`
NS	`ns2x.cengage.net` ⚠️ Not in parent delegation
		A	69.32.224.38^{🇺🇸 RoadRunner69.32.224.0/24 Proxy-registered route object for Cengage Learning Inc Attn Communications in CSO Mason, OH 45040}
			PTR	`kyindxns4.cengage.net`
			PTR	`ns2.cengage.net`
TXT	`v=spf1 -all`
SOA	`ns1x.cengage.net`hostmaster@ohcinmason.com serial=27

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776078862

Same first word

leftcoastlearning.com

DNS History

11 records (8 active, 3 former)

●NSa1-49.akam.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

●NSa13-64.akam.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

●NSa14-65.akam.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

●NSdns1.p01.nsone.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

●NSdns2.p01.nsone.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

●NSdns3.p01.nsone.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

○NSns1.cengage.net2015-07-17 → 2018-09-09 · 4 obs

● 2015-07-17 01:28:14
● 2018-09-09 22:14:38
○ 2026-02-28 00:12:12
○ 2026-04-13 11:19:06

●NSns1x.cengage.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

○NSns2.cengage.net2015-07-17 → 2018-09-09 · 4 obs

● 2015-07-17 01:28:14
● 2018-09-09 22:14:38
○ 2026-02-28 00:12:12
○ 2026-04-13 11:19:06

●NSns2x.cengage.net2026-02-28 → 2026-04-13 · 3 obs

○ 2018-09-09 22:14:38
● 2026-02-28 00:12:12
● 2026-04-13 11:19:06

○A69.32.148.2232015-07-17 → 2016-06-22 · 4 obs

● 2015-07-17 01:28:14
● 2016-06-22 07:57:52
○ 2017-02-05 19:11:10
○ 2026-04-13 11:19:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net...	-
leftcoastlearning.com	dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, a13-64.akam.net...	-

✅ Authoritative Response

Server:198.51.44.1

NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, a13-64.akam.net, a14-65.akam.net, a1-49.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for leftcoastlearning.com (unsigned zone)

⏱️ Timing

Total: 498ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns2x.cengage.net, ns1x.cengage.net`
TXT	1	`v=spf1 -all`
SOA	1	`ns1x.cengage.net hostmaster.ohcinmason.c`

Analysis

Name Servers

leftcoastlearning.com delegates to eight name servers: a1-49.akam.net, a13-64.akam.net, a14-65.akam.net, ns1x.cengage.net, ns2x.cengage.net, dns1.p01.nsone.net, dns2.p01.nsone.net and dns3.p01.nsone.net.

At least part of the name servers for leftcoastlearning.com are shared with other domains, for instance autumlove.com, exxonmobil.to, happyfeetproducts.com, spyoptionfunnel.com and mycaresolutions.org.

these name servers are commonly used with the name servers dns4.p01.nsone.net, ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com, ns01.jnjdns.com, ns02.jnjdns.com, a10-67.akam.net, a13-67.akam.net and ns03.jnjdns.com.

Host names with two IP numbers:

a1-49.akam.net points to 2600:1401:2::31 and 193.108.91.49; a13-64.akam.net points to 2600:1480:800::40 and 2.22.230.64; a14-65.akam.net points to 2600:1480:1800::41 and 184.26.161.65; dns1.p01.nsone.net points to 2620:4d:4000:6259:7:1:0:1 and 198.51.44.1; dns2.p01.nsone.net points to 2a00:edc0:6259:7:1::2 and 198.51.45.1; dns3.p01.nsone.net points to 2620:4d:4000:6259:7:1:0:3 and 198.51.44.65.

Host names with one IP number:

ns1x.cengage.net points to 69.32.130.251; ns2x.cengage.net points to 69.32.224.38.

leftcoastlearning.com - robtex.com